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-rw-r--r--mm/gup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/gup.c b/mm/gup.c
index 2c08248d4fa2..f173fcbaf1b2 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/err.h>